Sudden Gamecrash

Hello,
as written in the topic i have problem with my F12012 crashing.
The crash itself appears as following:
-The screen fades to black
-The sound continues for some seconds, then it crashes too and becomes a repeating ratteling as if the PC does not "go on" but repeats everything(sorry for this choice of words
-The cooling of my pc gets loud and i have to reset it
I can hardly imagine that a cooling problem is the reason because i can play games like Crysis 2 on MAXsettings and cleaned the fans and airways before 3 days(i habe the problem longer then this timespan)
I added some modifications for camera and textures.
Lookinf forward for your advice. Thanks for your time.

I sent an email to codemasters´ support. I was told to make a dxdiag and send the result to them. Afterwards i was supposed to make a restart with no additional drivers autostarting. Just the basic drivers i need and run the game. I had no crash since then. I also updated my graphiccarddriver. Lets see how long it works. Will keep you updated.